RF:ALC Control Property

NI RF Signal Generators Help (NI-RFSG 18.1)

Edition Date: June 2018
Part Number: 371025V-01
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Short Name: ALC Control

Property of niRFSG

Enables or disables the automatic leveling control (ALC).

PXIe-5654 with PXIe-5696: If this property is enabled, the ALC is closed (closed-loop mode) and allows for better amplitude accuracy and wider amplitude dynamic range. If this property is disabled, the ALC is open (open-loop mode), which is ideal when using modulation. Disabling the ALC Control property also allows NI-RFSG to perform an automatic power search.

PXIe-5654: Disable is the only supported value for this device. The PXIe-5654 does not support the ALC when used as a stand-alone device.

Supported Devices: PXIe-5654/5654 with PXIe-5696

Default Values:

PXIe-5654: Disable

PXIe-5654 with PXIe-5696: Enable

Related Topics

Power Level Adjustment

ALC Closed Loop Versus Open Loop

Power Search

Disable (0)

Disables the ALC.

Enable (1)

Enables the ALC.


The following table lists the characteristics of this property.

Datatype iL
High-level VIs N/A
Channel-based No


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